Josh O’Connor looked to be the picture-perfect date at the Cannes Film Festival.
The actor was photographed with rumored girlfriend Alison Oliver on the red carpet as they departed the premiere of his new film The Mastermind on Friday, May 23. In pictures, the pair could be seen smiling at each other as they posed for the cameras alongside his parents, John and Emily O’Connor.
Oliver, 27, then held Josh’s arm as they walked down the iconic Palais des Festivals steps.
Josh, 35, wore a custom two-toned Prada suit with a pink flower on his lapel, while Oliver stunned in a black and white gown with a bow detail in the back. Her hair was down in a simple ‘do.
Although they have not publicly confirmed their relationship status, rumors of a romance began in the fall of 2024. Josh was reportedly a guest at Oliver’s sister Lauren’s South London wedding in September before the pair was seen holding hands in Bologna, Italy, in November. They even took a selfie with fans at a film and photography library.
Later that month, Josh and Oliver were seen out and about in New York City.
“Josh and Alison have a lot in common and have enjoyed getting to know each other away from the spotlight,” a source told The Sun. “Despite their huge roles, they prefer hanging out in libraries rather than big glamorous events.”

Josh O’Connor and Alison Oliver depart the “The Mastermind” red carpet at the 78th annual Cannes Film Festival at Palais des Festivals on May 23, 2025 in Cannes, France. (Photo by Stephane Cardinale – Corbis/Corbis via Getty Images)
Us Weekly has reached out to Josh’s rep for comment on the nature of their relationship.
Josh is best known for starring as Prince Charles on seasons 3 and 4 of The Crown. In 2021, he won an Emmy award and a Golden Globe award for the role. The British star has since starred in Emma (2020) and the film Challengers (2024).
Oliver, for her part, made a name for herself after appearing alongside Joe Alwyn in Hulu’s Conversations with Friends in 2022. The Irish actress then starred in 2023’s Saltburn and is set to appear in 2026’s Wuthering Heights.
Josh was previously linked to Jonah Hauer-King‘s sister Margot Hauer-King in 2019, and revealed in an August 2023 interview with GQ that he went to school with singer FKA Twigs and had a crush on her at the time.
“I really shouldn’t be saying this, but it’s hilarious,” he said of knowing Twigs, 37. “I was in a band called Orange Output basically to try and get Twigs to go out with me. I was the lead singer, and one of the lyrics I wrote was ‘I’m addicted to crack, motherf***er.’ The closest thing I’d had to crack was Coco Pops.”
In response, Twigs told GQ: “I’m very flattered that he tried to do that because I was definitely not cool and not particularly popular.”